18-year-old Owen died after being stabbed in Mazurek Way, Haydon End on December 4.
The 15-year-old, who cannot be named for legal reasons, has been remanded in a secure youth detention centre and is due to appear via videolink at Bristol Crown Court tomorrow.
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More from Bristol Crown Court
View all Bristol Crown Court coverage
- Ex-Cop Guilty of Shocking Strip Search Sex Crimes
- Teen Denies Murder of 9-Year-Old Girl in Shocking Somerset Stabbing
- Nursery Worker Jailed for 30 Years Over Sickening Abuse of Toddlers
- Prison Pharmacy Tech Jailed for Smuggling Drugs and SIM Cards into Bristol Jail
- Bristol Man Caught After £40,000 Shoplifting Spree
- Double Rapist from Bradford on Avon Must Serve Full Sentence After Failed Appeal